Digital Commons Network^™

Ytterbium-Doped Fiber-Seeded Thin-Disk Master Oscillator Power Amplifier Laser System, Christina Willis-Ott

Electronic Theses and Dissertations

Lasers which operate at both high average power and energy are in demand for a wide range of applications such as materials processing, directed energy and EUV generation. Presented in this dissertation is a high-power 1 μm ytterbium-based hybrid laser system with temporally tailored pulse shaping capability and up to 62 mJ pulses, with the expectation the system can scale to higher pulse energies. This hybrid system consists of a low power fiber seed and pre-amplifier, and a solid state thin-disk regenerative amplifier. This system has been designed to generate high power temporally tailored pulses on the nanosecond time scale. …

Less Lost: No Touchdown Dance, William Conner

Electronic Theses and Dissertations

Less Lost is a feature-length film by William Chase Conner, made as part of the requirements for earning a Master of Fine Arts in Film & Digital Media from the University of Central Florida.

Immuno-Pcr Detection Of Lyme Borreliosis, Micah Halpern

Electronic Theses and Dissertations

Lyme borreliosis, more commonly referred to as Lyme disease, is the fastest growing zoonotic disease in North America with approximately 30,000 confirmed cases and 300,000 estimated infections per year. In nature, the causative agent of Lyme disease, the bacterium Borrelia burgdorferi, cycles between Ixodes sp. ticks and small mammals. Humans become infected with Lyme disease after being bitten by an infected tick. The primary indicator of a Borrelia burgdorferi infection is a bull’s eye rash typically followed by flu-like symptoms with treatment consisting of a 2-4 week course of antibiotics. If not treated, later stages of the disease can result …

Induction Of Microalgal Lipids For Biodiesel Production In Tandem With Sequestration Of High Carbon Dioxide Concentration, Wilbel J. Brewer

Dissertations, Master's Theses and Master's Reports - Open

There is no doubt that sufficient energy supply is indispensable for the fulfillment of our fossil fuel crises in a stainable fashion. There have been many attempts in deriving biodiesel fuel from different bioenergy crops including corn, canola, soybean, palm, sugar cane and vegetable oil. However, there are some significant challenges, including depleting feedstock supplies, land use change impacts and food use competition, which lead to high prices and inability to completely displace fossil fuel ^[1-2]. In recent years, use of microalgae as an alternative biodiesel feedstock has gained renewed interest as these fuels are becoming increasingly economically viable, …

Strategic Optimization Techniques For Frtu Deployment And Chip Physical Design, Chen Liao

Dissertations, Master's Theses and Master's Reports - Open

Combinatorial optimization is a complex engineering subject. Although formulation often depends on the nature of problems that differs from their setup, design, constraints, and implications, establishing a unifying framework is essential. This dissertation investigates the unique features of three important optimization problems that can span from small-scale design automation to large-scale power system planning: (1) Feeder remote terminal unit (FRTU) planning strategy by considering the cybersecurity of secondary distribution network in electrical distribution grid, (2) physical-level synthesis for microfluidic lab-on-a-chip, and (3) discrete gate sizing in very-large-scale integration (VLSI) circuit.

First, an optimization technique by cross entropy is proposed to …

Effects Of Ethylene On Secondary Xylem Formation In Arabidopsis Thaliana, Haley M. Rupp

Dissertations, Master's Theses and Master's Reports - Open

Ethylene has myriad roles as a plant hormone, ranging from senescence and defending against pathogen attacks to fruit ripening and interactions with other hormones. It has been shown to increase cambial activity in poplar, but the effect on wood formation in Arabidopsis hypocotyl has not previously been studied. The Auxin-Regulated Gene involved in Organ Size (ARGOS), which increases organ size by lengthening the time for cell division, was found to be upregulated by ethylene. We tested the effect of ethylene treatment at 10 and 100 µM ACC on three genotypes of Arabidopsis, Col0 (wild-type), an ARGOS deficient mutant (argos), and …

Electrospun Quaternized Chitosan Fibers For Virus Removal From Drinking Water, Xue Mi

Dissertations, Master's Theses and Master's Reports - Open

Membrane filtration has become an accepted technology for the removal of pathogens from drinking water. Viruses, known to contaminate water supplies, are too small to be removed by a size-exclusion mechanism without a large energy penalty. Thus, functionalized electrospun membranes that can adsorb viruses have drawn our interest. We chose a quaternized chitosan derivative (HTCC) which carries a positively-charged quaternary amine, known to bind negatively-charged virus particles, as a functionalized membrane material. The technique of electrospinning was utilized to produce nanofiber mats with large pore diameters to increase water flux and decrease membrane fouling. In this study, stable, functionalized, electrospun …

Innovative Human-Computer Interactions To Support Cognitive Collaborative Geospatial Environments, Kevin Takala

Dissertations, Master's Theses and Master's Reports - Open

In the current world geospatial information is being demanded in almost real time, which requires the speed at which this data is processed and made available to the user to be at an all-time high. In order to keep up with this ever increasing speed, analysts must find ways to increase their productivity. At the same time the demand for new analysts is high, and current methods of training are long and can be costly. Through the use of human computer interactions and basic networking systems, this paper explores new ways to increase efficiency in data processing and analyst training.

Production Of Recombinant Trichoderma Reesei Endoglucanase Protein Cel7b By Using Kluyveromyces Lactis, Zainab Ibrahim Alshoug

Dissertations, Master's Theses and Master's Reports - Open

This research is about producing recombinant Trichoderma reesei endoglucanase Cel7B by using Kluyveromyces lactis, transformed with chromosomally integrated Cel7B cDNA, as a host cell (K. lactis Cel7B). Cel7B is one of the glycoside hydrolyze family of proteins that are produced by T. reesei. Cel7B together with other endoglucanases, exoglucanases, and â-glucosidases hydrolyze cellulose to glucose, which can then be fermented to biofuels or other value-added products.

The research objective of this MS project is to examine favorable fermentation conditions for recombinant Cel7B enzyme production and improved activity. Production of enzyme on different types of media was examined, and the activity …

Magneto-Photonic Crystals For Optical Sensing Applications, Neluka Dissanayake

Dissertations, Master's Theses and Master's Reports - Open

Among the optical structures investigated for optical sensing purpose, a significant amount of research has been conducted on photonic crystal based sensors. A particular advantage of photonic crystal based sensors is that they show superior sensitivity for ultra-small volume sensing. In this study we investigate polarization changes in response to the changes in the cover index of magneto-optic active photonic band gap structures. One-dimensional photonic-band gap structures fabricated on iron garnet materials yield large polarization rotations at the band gap edges. The enhanced polarization effects serve as an excellent tool for chemical sensing showing high degree of sensitivity for photonic …

Evaluation And Monitoring Of Ash (Fraxinus Spp.) Tolerant To Long-Term Emerald Ash Borer (Agrilus Planipennis [Coleoptera: Buprestidae]) Exposure, Kathryn G. Hietala

Dissertations, Master's Theses and Master's Reports - Open

Invasive insects that successfully establish in introduced areas can significantly alter natural communities. These pests require specific establishment criteria (e.g. host suitability) that, when known, can help quantify potential damage to infested areas. Emerald ash borer (Agrilus planipennis [Coleoptera: Buprestidae]) is an invasive phloem-feeding pest which is responsible for the death of millions of ash trees (Fraxinus spp. L.). Over 200 surviving ash trees were previously identified in the Huron-Clinton Metroparks located in southeast Michigan. Trees were assessed over a four year period and a hierarchical cluster analysis was performed on dieback, vigor, and presence of signs and …

The Problematic Of Privacy In The Namespace, Randal Sean Harrison

Dissertations, Master's Theses and Master's Reports - Open

In the twenty-first century, the issue of privacy--particularly the privacy of individuals with regard to their personal information and effects--has become highly contested terrain, producing a crisis that affects both national and global social formations. This crisis, or problematic, characterizes a particular historical conjuncture I term the namespace. Using cultural studies and the theory of articulation, I map the emergent ways that the namespace articulates economic, juridical, political, cultural, and technological forces, materials, practices and protocols. The cohesive articulation of the namespace requires that privacy be reframed in ways that make its diminution seem natural and inevitable. In the popular …

Technology, Transportation, And Scale In The Koyokuk Placer Mining District 1890s - 1930s, Jessica Sarah Peterson

Dissertations, Master's Theses and Master's Reports - Open

The Koyukuk Mining District was one of several northern, turn of the century, gold rush regions. Miners focused their efforts in this region on the Middle Fork of the Koyukuk River and on several of its tributaries. Mining in the Koyukuk began in the 1880s and the first rush occurred in 1898. Continued mining throughout the early decades of the 1900s has resulted in an historic mining landscape consisting of structures, equipment, mining shafts, waste rock, trash scatters, and prospect pits. Modern work continues in the region alongside these historic resources. An archaeological survey was completed in 2012 as part …

The Processing Of Aluminum Gasarites Via Thermal Decomposition Of Interstitial Hydrides, Joseph James Licavoli

Dissertations, Master's Theses and Master's Reports - Open

Gasarite structures are a unique type of metallic foam containing tubular pores. The original methods for their production limited them to laboratory study despite appealing foam properties. Thermal decomposition processing of gasarites holds the potential to increase the application of gasarite foams in engineering design by removing several barriers to their industrial scale production. The following study characterized thermal decomposition gasarite processing both experimentally and theoretically. It was found that significant variation was inherent to this process therefore several modifications were necessary to produce gasarites using this method. Conventional means to increase porosity and enhance pore morphology were studied. Pore …

Computational Prediction Of The Sporulation Network In Clostridium Thermocellum, Changyi Jiang

Dissertations, Master's Theses and Master's Reports - Open

Sporulation is a process in which some bacteria divide asymmetrically to form tough protective endospores, which help them to survive in a hazardous environment for a quite long time. The factors which can trigger this process are diverse. Heat, radiation, chemicals and lacking of nutrition can all lead to the formation of endospores. This phenomenon will lead to low productivity during industrial production. However, the sporulation mechanism in a spore-forming bacterium, Clostridium theromcellum, is still unclear. Therefore, if a regulation network of sporulation can be built, we may figure out ways to inhibit this process. In this study, a …

Pesky Pests Of The Great Lakes State: Is Public Participation Influenced By Geographic Differences?, Angela Yu

Dissertations, Master's Theses and Master's Reports - Open

In Michigan, environmental issues, such as invasive species, are not geographically constrained, affecting citizens throughout the state. Regulations and management plans organized by scientists and officials are intended to address issues statewide, but these policies may not adequately tackle the threat from invasive species as it impacts different parts of the state at different times. Participation and contributions from citizens can offer insight into the impacts and changes non-native species have on the local ecosystem. However, chances to participate and contribute may be influenced by geographic location in the state. To understand if this was the case, this research studied …

The Planned And The Emergent: An Alternative Model Of Learning And Literacy, Lori S. Rogers

Dissertations, Master's Theses and Master's Reports - Open

Within academic institutions, writing centers are uniquely situated, socially rich sites for exploring learning and literacy. I examine the work of the Michigan Tech Writing Center's UN 1002 World Cultures study teams primarily because student participants and Writing Center coaches are actively engaged in structuring their own learning and meaning-making processes. My research reveals that learning is closely linked to identity formation and leading the teams is an important component of the coaches' educational experiences. I argue that supporting this type of learning requires an expanded understanding of literacy and significant changes to how learning environments are conceptualized and developed. …

Breaking Codes: Making Theories On Menstruation Accessible Through Third-Wave Feminism, Carole S. Reynolds

Dissertations, Master's Theses and Master's Reports - Open

Men and women respond to situations according to their community’s social codes. With menstruation, people adhere to “menstrual codes”. Within academic communities, people adhere to “academic codes”. This report paper investigates performances of academic codes and menstrual codes. Implications of gender identity and race are missing and/or minimal in past feminist work regarding menstruation. This paper includes considerations for gender identity and race. Within the examination of academic codes, this paper discusses the inhibitive process of idea creation within the academic sphere, and the limitations to the predominant ways of knowledge sharing within, and outside of, the academic community. The …

Lattice Boltzmann Method And Cellular Automata Simulation Of Particle Motion And Deposition In 2-D Case, Yichao Deng

Dissertations, Master's Theses and Master's Reports - Open

This technical report discusses the application of the Lattice Boltzmann Method (LBM) and Cellular Automata (CA) simulation in fluid flow and particle deposition. The current work focuses on incompressible flow simulation passing cylinders, in which we incorporate the LBM D2Q9 and CA techniques to simulate the fluid flow and particle loading respectively. For the LBM part, the theories of boundary conditions are studied and verified using the Poiseuille flow test. For the CA part, several models regarding simulation of particles are explained. And a new Digital Differential Analyzer (DDA) algorithm is introduced to simulate particle motion in the Boolean model. …

Freestores: What, Why, And How, T. Durr, Roslynn Brain

Environment and Society Faculty Publications

Everyone seems to generate some sort of unwanted possession over the years, whether it be clothes they no longer wear, appliances they no longer use, or books they no longer read. While throwing unwanted items like this away in the trash is convenient and simple, it adds to the amount of solid waste found in landfills and the natural environment. Furthermore, it wastes potentially valuable resources that could be used by others.

A viable alternative to disposing of unwanted possessions in the trash is to donate them to a freestore to be used by others, or if one does not …

Learning Outcomes: A Study Of Student Employees At The University Of Northern Iowa Wellness And Recreation Center, Justin James Holman

Graduate Research Papers

The University of Northern Iowa (UNI) Wellness and Recreation Services (WRS) administration and professional staff have recognized that employment at the Wellness Recreation Center (WRC) can and should be a component of the education that student employees receive as UNI undergraduates. This is clearly supported by Keeling (2005), Caine, Caine, McClintic and Klimek (2005), Stayhorn (2006) among others and a host of sponsored studies by the American College Personnel Association and National Association of Student Personnel Administrators (2004). The purpose of this research is to establish a comprehensive comparative analysis of student employee development through employment with the UNIWRS.

Graduate Studies Fact Book

Graduate Studies Fact Books (2006-2017)

No abstract provided.

Like A Hurricane: A Citation Analysis Of Emergency Management Scholarly Literature, Jennifer Noe, Julia M. Furay

Publications and Research

This bibliometric study used citation analysis to uncover citing characteristics in the burgeoning academic field of emergency management. Of the 281 degree programs listed by the Federal Emergency Management Agency nationwide, those at community colleges accounted for 17 percent of the total. Using the interdisciplinary database of Academic Search Complete, a sample of 5,099 citations was collected from 146 articles published between 2002 and 2012. The most strongly represented disciplines revealed by the analysis were Social Science, Science/Technology and Medicine. A majority of citations (45%) came from academic journals, with nearly half (44%) of those from Social Science. When citing …

Entrepreneurship Education In The Philippines, Aida L. Velasco

DLSU Business & Economics Review

This study presents the current state of entrepreneurship education in the Philippines. The status of entrepreneurship education is evaluated through the analysis of entrepreneurship education curricula and practices in the Philippines and to suggest policy measures in the promotion, development and creation, growth, and sustainability of more entrepreneurial undertaking. Entrepreneurship education in the Philippines is heavily focused on the development of entrepreneurs in terms of encouraging start-ups. However, there is lack of focus in developing creativity and innovation as a mindset of the student in the formal education system. There is also minimal support from the academe and industry to …

Credit Rating Agencies In India: Have We Done Enough?, Himashu Bhushan

DLSU Business & Economics Review

Credit rating agencies (CRAs) exist to primarily evaluate the creditworthiness of corporate borrowers who directly seek funds from the public without going to a bank. This study seeks to review the developments of CRAs in India, taking into consideration the recent global financial crisis. Emphasis is placed on the existing and desired regulatory structure in India vis-à-vis the legislation in the United States (US) and the European Union (EU). In perspective, affixing liability to the CRA is seen as a prudent and a decisive step in checking the potential malfunctioning in the system. Likewise, it would be a welcome move …

Publishing Japan: A Visual Observation Of English-Language Publications Related To Japanese Studies¹, Tai Wei Lim

DLSU Business & Economics Review

This paper studies English-language publications related to the subject of Japanese Studies through visual observation and collection of brochures on display at a major field conference—the combined Association of Asian Studies (AAS) and International Convention on Asian Studies (ICAS) conferences in Hawaii from 30 March 2011 to 3 April 2011. While there are existing studies especially in English-language trade magazines on general developments in the publishing industry related to Japanese Studies, case studies examining book offerings in field-specific major conferences are comparatively fewer. In carrying out the observation studies for this paper, I had three goals in mind. First, I …

Demetriades V. Yelp, California Superior Court

Historical and Topical Legal Documents

No abstract provided.

Trusting Joseph, Neal Rappleye

Interpreter: A Journal of Latter-day Saint Faith and Scholarship

The “first steps” of Mormon history are vital to the faith claims of the Latter-day Saints. The new volume Exploring the First Vision, edited by Samuel Alonzo Dodge and Steven C. Harper, compiles research into the historical veracity of Joseph Smith’s First Vision narrative which shows the Prophet to have been a reliable and trustworthy witness. Ultimately, historical investigation can neither prove nor disprove that Joseph had a theophany in the woods in 1820. Individuals must therefore reach their conclusions by some other means.

The Zoramites And Costly Apparel: Symbolism And Irony, Parrish Brady, Shon Hopkin

Journal of Book of Mormon Studies

The Zoramite narratives of Alma 31-35 and Alma 43-44 are richly symbolic accounts woven with many subtle details regarding the imporatnce of costly apparel and riches as an outward evidence of pride. This literary analysis focuses on how Mormon as editor structured the Zoramite narrative and used clothing as a metaphor to show the dangers of pride and the blessings afforded by humble adherence to God's teachings and covenants. The Zoramite's pride--as evidenced by their focus on costly apparel, gold, silver, and fine goods (Alma 31:24-25, 28)--competes with the foundational Book of Mormon teaching that the obedient will “ prosper …

Teaching The Book Of Revelation: Five Considerations

Religious Educator: Perspectives on the Restored Gospel

No abstract provided.